Translate ##P<n> chat tokens to player names from configstrings

src/client/parse.c

@@ -910,10 +910,50 @@ static void CL_CheckForIP(const char *s)
     }
 }
 
+/*
+ * Replace ##P<n> tokens with player names from cl.clientinfo.
+ * Per server game.c: "the client is supposed to translate ##P<n> to
+ * player names".
+ */
+static void CL_TranslatePlayerNameTokens(char *s, size_t size)
+{
+    char out[MAX_STRING_CHARS];
+    const char *src = s;
+    char *dst = out;
+
+    while (*src) {
+        size_t space = sizeof(out) - (size_t)(dst - out) - 1;
+        if (!space)
+            break;
+
+        if (!strncmp(src, "##P", 3) && Q_isdigit(src[3])) {
+            src += 3;
+            int playernum = 0;
+            while (Q_isdigit(*src))
+                playernum = playernum * 10 + (*src++ - '0');
+
+            if (playernum < MAX_CLIENTS) {
+                const char *name = cl.clientinfo[playernum].name;
+                size_t len = min(strlen(name), space);
+                memcpy(dst, name, len);
+                dst += len;
+            }
+            continue;
+        }
+        *dst++ = *src++;
+    }
+    *dst = '\0';
+    Q_strlcpy(s, out, size);
+}
+
 static void CL_HandlePrint(int level, char *s)
 {
     const char *fmt;
 
+    /* Called here rather than CL_ParseLocPrint() because ##P tokens
+     * arrive via svc_print broadcast messages, not localized prints. */
+    CL_TranslatePlayerNameTokens(s, MAX_STRING_CHARS);
+
     if (level != PRINT_CHAT) {
         if (cl.csr.extended) {
             if (level == PRINT_TYPEWRITER || level == PRINT_CENTER) {